Starting GAS Business

You know this waiting for job of a thing can really makes someone sick so myself and some friends are trying a gas biz related collabo since d area looks promising. We actually dont know how d sector is structure unlike the petroleum with up and downstream sector and the various investment Opportunities in the area. Is it only in selling (retailing) cooking gas or their are other areas waiting untapped.

Please guys what do you know about this. Any and every info counts and is highly welcome. Thanks